Patent application number | Description | Published |
20080310017 | MICROSCOPE FOR OBSERVING A SAMPLE IN THE BRIGHT FIELD ILLUMINATION BY TRANSMITTED LIGHT OR IN FLUORESCENCE-CONTRAST EPI-ILLUMINATION - A microscope for observing an object selectably using the bright-field transmitted light contrast procedure or the incident-light fluorescence contrast procedure. During the bright-field transmitted light contrast procedure, an illumination beam path is directed from a bright-field light source to the object and an imaging beam path is directed from the object through the microscope objective into the microscope tube, which includes a fluorescence unit that includes a fluorescence excitation light source, an illumination optical system, a filter set having at least one excitation filter and at least one emission filter, as well as a beamsplitter. The fluorescence unit is mounted movably, so that in a first end position of movement the beamsplitter and the emission filter are out of the imaging beam path of the microscope and in a second end position of movement they are in the imaging beam path between the microscope objective and the microscope tube. | 12-18-2008 |
20080310030 | Microscope Objective - The invention is directed to an objective, particularly for telescope-type stereomicroscopes. The objective comprises two lens groups, a first lens group and a second lens group. The first lens group, which faces the object plane, has a positive refractive power and comprises a plurality of lenses of which at least two form a cemented component. The second lens group, which is on the image side, has a negative refractive power and comprises a collecting cemented component and a diverging lens. The objective is characterized in that the following conditions B | 12-18-2008 |
20090224174 | Calibration device and laser scanning microscope with such a calibration device - A calibration device for managing a variety of performance tests and/or calibration tasks in a laser scanning microscope. The calibration device, which has focusing optics and a test structure arranged in the focal plane of the focusing optics, with structural elements detectable in reflected and/or transmitted light aligned to each other in a common mounting, can be switched into the microscope beam path in a laser scanning microscope, so that the pupil of the focusing optics coincides with the objective pupil of the laser scanning microscope or lies in a plane conjugated to it. | 09-10-2009 |
20110082590 | CONTROLLER FOR ACTUATORS IN MICROSCOPE LENSES - A controller for microscope lenses for correcting spherical aberration and for adjusting particularly difficult to access microscope lenses to an optimum of imaging quality, enabling automatic adjustment of the different actuators of a microscope lens, to effect a simple, cost-effective, user-friendly, and precise balance, particularly of cover slip deviations and different base thicknesses of Petri dishes for the purposes of increasing imaging quality. At least two movable elements of a microscope objective supporting lenses or lens groups, are provided in a movable manner in the axial direction along the optical axis of the microscope objective relative to the housing of the microscope lens in a motor-actuated manner by way of respective adjusting rings. A controller externally controlled and disposed in the microscope lens is provided for storing different characteristic curves for paths of motion of the movable elements. | 04-07-2011 |
20120188660 | MICROSCOPE OBJECTIVE WITH AT LEAST ONE LENS GROUP THAT CAN BE MOVED ALONG THE OPTICAL AXIS - The present disclosure relates to a family of microscopes, each with at least one lens group that includes at least one lens and a lens mount and moves along the optical axis via a drive system for The drive system includes a rotary motor and transmission elements to convert the rotary motion to linear motion to transmit the translational movement to the lens group, and, simultaneously, to prevent rotations of the lens group about the optical axis. In an embodiment, the rotating output shaft of the motor is connected with a screw spindle that engages with a threaded hole machined into the lens mount, so that the lens group is directly moved in a translational manner. The engagement of the screw spindle with the lens mount both effects the translational movement of the lens group and secures the lens group against rotation about the optical axis. | 07-26-2012 |
20120250148 | ARRANGEMENT FOR EQUALIZING BINOCULAR VISUAL FIELDS - An arrangement for equalizing binocular visual fields for microscopes and other optical instruments, with an eyepiece arranged in each beam path, and with diaphragms serving the purpose of visual field adjustment. The diaphragms are fixed or movable in or in immediate proximity to an intermediate image plane in the optical output to the left eye and/or to the right eye. One diaphragm is arranged eccentrically or concentrically in the installation space of at least one eyepiece or in at least one eyepiece support of the corresponding optical instrument provided therefor. Adjusters are present for positioning and/or adjusting the diaphragms. | 10-04-2012 |
20130003200 | OBJECTIVE - An objective lens assembly is provided, with a sleeve, a first positioning member arranged in the sleeve, which is housed displaceable in longitudinal direction of the sleeve and holds at least one lens, a first adjustment unit which brings the first positioning member into abutment on the inside of the sleeve such that the first positioning member rests against the inside of the sleeve in a first linear contact area and at the same time the displaceability of the first positioning member is maintained. More than one positioning member can be utilized along with multiple lenses and can utilize simple mechanical structures (e.g., blind- and through-holes and pins or shanks) and/or magnetic or magnetisable materials to maintain a desired position of the sleeve. | 01-03-2013 |
20140327961 | Slider for Introduction into an Optical Path of a Light Microscope - The invention relates to a slider for introduction into an optical path of a light microscope. Such a slider has a housing for arrangement on the light microscope, a holder which can be displaced in the housing in a displacement direction over a displacement length, an optical element which is held by the holder oriented with respect to an optical axis extending perpendicular to the displacement direction, and movement means for displacing the holder. The slider is characterised according to the invention in that at least the portion of the movement means which lies in the displacement direction within the displacement length lies, in a direction perpendicular to a plane fixed by the optical axis and the displacement direction, completely within a coverage area which is covered by the holder upon displacement thereof, wherein the coverage area is fixed by the optical axis as normal. | 11-06-2014 |
20150015943 | DEVICE FOR FORMING AN IMMERSION FILM - A device for forming an immersion film between a front lens of a microscope objective and a preparation on an inverted microscope. The device includes a protection device for preventing fluid leakage from the immersion film region, and an apparatus for supplying the immersion fluid (auto-immersion) to the immersion film region. The protection device is arranged statically in the main part of the microscope stand and the means for supplying immersion fluid to the immersion film region is connected to the protection device by means of an Aquastop system. | 01-15-2015 |